LTM4642
20VIN, Dual 4A or Single 8A
DC/DC µModule Regulator
Features Description Small Form Factor Dual 4A Power Supply
nn Wide Input Voltage Range: 4.5V to 20V
(2.375V Min with CPWR Bias)
nn Dual 180° Out-of-Phase Outputs with 4A DC
nn Dual Outputs with 0.6V to 5.5V Range
nn Output Voltage Tracking
nn ±1.5% Maximum Total DC Output Voltage Error
nn Up to 95% Maximum Efficiency
nn Phase-Lockable Fixed Frequency 600kHz to 1.4MHz
nn Constant On-Time, Valley Current Mode Architecture
nn Selectable Burst Mode® Operation
nn Output Overvoltage and Overcurrent Protection
nn 9mm × 11.25mm × 4.92mm BGA Package The LTM®4642 is a complete dual 4A or single 8A step-down
DC/DC μModule® (micromodule) regulator. Included in the
package are the switching controller, power FETs, inductor,
and all support components. Operating over input voltage
ranges of 4.5V to 20V, (2.375V min with external CPWR
bias), the LTM4642 supports two outputs with voltage
ranges of 0.6V to 5.5V, set by a single external resistor.
Its high efficiency design delivers 4A continuous current …